Wall-board.



P. J. CAREY.

WALL BOARD. APPLICATION FILED APR- 23. 1915.

1,156,753. I Patented (M12, 1915.

WITNESSES: I )lW/ENTOR j z Z PJCa/w 'y.

2 3. I By Wall-Board, of which the following is a- PATRICK JOSEPH CAREY, OF NEW YORK, N. Y;

WALL-BOARD.

Specification of Letters Patent.

' Patented Oct. 12, 1915.

Application filed April 23, 1915. Serial No. 28,395.

To all whom it may concern:

Be it known that I, PATRICK J. CAREY, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved full, clear, and exact description.

My invention has for its object to provide a wallboard which may be readily worked with tools, it being possible to cut the board to fit, and join the parts as may be desired.

in the following specification in which the preferred form of mylinvention is disclosed.

In the drawings, similar reference characters refer to similar parts in all the views,-

inwhich- Figure 1 is a perspective view, showing my'wall board; and Figs.'2, 3 and 4.- are fragmentary views, showing how the wall board may be cut-for mortising purposes.

My wall board is constructed with a central core or base A manufactured from paper, pulp or fibers of wood pulp ground and chemically treated and pressed together in layers 'B, the central core or base being builtup to form a board of any desired thickness. At each side of this central core or base, there is disposed a piece of'vulcanized fiber board C, the sheets of vulcanized fiber board being preferably. onetwentieth of an inch thick. The vulcanized fiber board C is preferably secured to the central core or base by .a waterproof glue, such aswater glass, it being-also possible to secure the vulcanized fiber board to'the central core or base with a plastic cement,

manufactured of asphalt, four parts and I paraflin, one part. In order'that the waterproof glue or the plastic cement may take hold on the central core or base A and on the vulcanized fiber board C, the adjacent surfaces of the central core or base A and the vulcanized fiber board C may be roughened, before the waterproof glue orplastic cement is applied. This waterproof glue The board may be planed, sawed or Worked with a chisel or other or cement keeps all moisture from thecentral core or base A, and as the vulcanized fiber board C, is not injured and as its value 1s not imp ired by water or moisture, it will be seen that my wa'll board is Very durable and may ,be used in many cases,

Where other wall board noW on the market would be of no value.

The vulcanized fiber board C, supplies a surface which may be painted either in oil or water color and this makes my wall board of great usefulness in the construction of scenery.

While it is impossible to mortise or dovetail a -wall board which has been hitherto offered for sale, my wall board may be mortised and joined in many different ways with the very best results. In Fig. 2,1 show one method of joining the wall board by cutting a V,D in one end of thecentral core or base A and by cutting the other end of the central core of base A, so that the central core or base. A will have a V-shaped projection E, which will fit the V-shaped recess Don a companion board. When two pieces of wall board are joined in this mannor, the vulcanized fiber boards C at the side of the central core -=or base A will abut against each other, and will cover the cut edges of the central core or base A and hold 1 them in place.

In Fig. 3, 1 illustrate another manner-in which the wall board may be cut to form a joint. In this case, the central core or base A is cut away a dlstance between the V111- canized fiber boards C at one end of the wall board, the vulcanized fiber boards 1C being cut away atthe other end of the wall board, so that the central 'core or base will EI'QjGCt beyond the vulcanized fiber board at F. he projection F of the central core or base is then disposed between the projecting ends of the fiber board on a correspondingly out Wall board and the pro-v jecting ends of the vulcanized fiber board 0 are secured to the sides of they rojecting end F of the central core or base The wall board may not'only be cut as illustrated in Figs. 2 and 3, so that it maybe conveniently oined, but it may be cut in other, ways, as for instance, .inthe mannerillustrated in Fig. 4. In Fig. 4,1at one'fend of the wall board, the central core or base is cut away at G, so that the end C? of the I10 vulcanizedv fiber board 0 projects beyond .L the end G of the central core or base A, the

of the vulcanized fiber board C being cut away so that the end of the central core or base .A projects beyond the vulcanized fiber board C at H. It will be understood that when two or more Wall boards are cut in the manner described and illustrated in Fig. 4, one' of the projecting ends C of the vulcanized fiber board G may be disposed against the side of the central core or base A, so that it will abut against the end C of the vulcanized fiber board C on a companic-n Wall board cut in the manner described. The projecting end C' of the vul-- canized fiber board 0 Will then be disposed against the side of an end of the central core or base A of the second-mentioned Wall board section, and the cut end G of the central core or-base A of the first-mentioned Wall boar-d Willabut against the cut end H of the central core orbase A of the secondmentioned Wall board.

The board may of course be used not only as a Wall board, but as an insulator below floors and for scenery, panels, stair risers,

and for themanufacture of frames, furniture, core Work, etc. The board is dampproof, vermin-proof and almost fire-proof.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In an article of manufacture, a pulp board and stiff fire-proof vulcanized fiber board secured to one or both sides, of the pulp boa-rd.

2. In an article of'manufacture, a pulp 'board, stifi fire-proof vulcanized fiber board of the pulp board.

3. In an article of manufacture, a pulp board, and vulcanized fiber boards secured to a side of the said pulp board and extending beyond the central portion of the pulp board, to be secured to an adjacent member disposed Within the vulcanized fiber board and against the central portion of the pulp board.

4. In an article of manufacture, a pulp board, and a vulcanized fiber board secured to the side of the pulp board and extending beyond the pulp board, to be attached to a similar pulp board extending beyond an attached vulcanized fiber board When the first-mentioned vulcanized fiber board abuts against the said attached vulcanized fiber board. 7

5. In an article of manufacture, a pulp board, and vulcanized fiber boards secured to the sides of the pulp board and extending therebeyond for embracing pulp board extending beyond similar vulcanized fiber boards secured to its sides.

In testimony whereof I have signed my name to this specification in the presence oftWo subscribing Witnesses.

PATRICK JOSEPH CAREY.

Witnesses DANIEL J. CAREY, JOHN F. ScHMoNsEEs. 

